%I #11 Jun 30 2021 04:31:30
%S 27,57,148,178,247,258,280,291,297,298,300,301,303,304,305,306,307,
%T 313,324,335,346,357,390,420,511,541,607,618,627,628,630,631,633,634,
%U 635,636,637,640,651,673,684,695,706,717,753,783,874,904,995,1025
%N Numbers whose base-11 representation has the same nonzero number of 2's and 5's.
%K nonn,base,easy
%O 1,1
%A _Olivier GĂ©rard_